EP 2675817 B1 20150916 - POLYTITANIC ACID ESTERS AND USE THEREOF TO PRODUCE IMPLANTABLE, OPTIONALLY ABSORBABLE FIBERS
Title (en)
POLYTITANIC ACID ESTERS AND USE THEREOF TO PRODUCE IMPLANTABLE, OPTIONALLY ABSORBABLE FIBERS
Title (de)
POLYTITANSÄUREESTER UND DEREN VERWENDUNG ZUR HERSTELLUNG VON IMPLANTIERBAREN, GGF. RESORBIERBAREN FASERN
Title (fr)
ESTERS D'ACIDE POLYTITANIQUE ET UTILISATION DESDITS ESTERS D'ACIDE POLYTITANIQUE POUR LA PRODUCTION DE FIBRES IMPLANTABLES, LE CAS ÉCHÉANT RÉSORBABLES
Publication
Application
Priority
- DE 102011011544 A 20110217
- EP 2012052513 W 20120214
Abstract (en)
[origin: WO2012110512A1] The invention relates to polytitanic acid esters having linear cross-linking structures, obtainable by reacting a titanium compound that is soluble in an alcohol, in water, or in a mixture of water and alcohol and that has the composition (I) Ti(R)mXn (I), wherein the groups R independently mean alkoxy, carboxy, or OH, X means halogen, m = 0 to 4, n = 0 to 4, and m + n = 4, with a compound (II) that contains the following structural unit: [O=CR4-(CR5R3)p-CR1 R2-O]", wherein p is 0 or 1 and wherein (a) R1 and R2 are independently selected from among hydrogen, alkyl, and alkenyl, R3 and R5 are independently selected from among hydrogen or an unsubstituted or substituted alkyl or alkenyl, R4 is OH or O(MX+)1/X, wherein M is a metal or ammonium and x is 1 or 2, or (b) R1 and R2 together mean =O and R3, R5, and R4 are independently selected from among hydrogen, alkyl, and alkenyl, wherein titanium compound (I) is reacted with compound (II) at a molar ratio of 1 to 0.5 - 1.9, with respect to an unbridged titanium compound, i.e., a (monomeric) titanium compound containing a single titanium atom, with the stipulation that, if compound (I) has no more than 2 hydroxy groups and if the reaction occurs in a water-free medium, the product formed by the reaction is then brought in contact with water in such a way that a hydrolytic condensation reaction of the produced titanium compound(s) occurs in all cases. Such polytitanic acid esters can be spun in the form of viscous masses to create fibers.
IPC 8 full level
CPC (source: EP US)
A61L 31/148 (2013.01 - US); C07C 59/06 (2013.01 - EP US); C07C 59/08 (2013.01 - EP US); C07F 7/003 (2013.01 - EP US); D01F 1/10 (2013.01 - EP US); D01F 2/06 (2013.01 - EP US); D01F 9/08 (2013.01 - EP US); D01F 11/00 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102011011544 A1 20120823; EP 2675817 A1 20131225; EP 2675817 B1 20150916; EP 2675817 B8 20151125; US 2013328234 A1 20131212; WO 2012110512 A1 20120823
DOCDB simple family (application)
DE 102011011544 A 20110217; EP 12705106 A 20120214; EP 2012052513 W 20120214; US 201213985755 A 20120214